Location
St. Louis, Missouri
Presentation Date
29 Apr 1981, 9:00 am - 12:30 pm
Abstract
A procedure for soil-pile-structure interaction analyses under earthquake loading is presented, using two computer programs: DESRA and SPASM. DESRA solves for free-field site response, including liquefaction, using a two-phase pore-pressure and effective stress soil model. Resulting displacement and pore pressure time histories are then transferred to SPASM for soil-pile-structure interaction solutions. The procedure is compared with a conventional approach consisting of a linear dynamic structural model and a separate nonlinear pseudo static pile model. The SPASM method was found to be useful in practical design of platforms to withstand earthquake loading. When significant superstructure-foundation interaction is expected, uncertainty in the interaction phenomena leads to a range of design results if the conventional approach is used. The SPASM method can provide more definite and realistic design parameters.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
1st International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1981 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Matlock, Hudson; Martin, Geoffrey R.; Lam, Ignatius P.; and Tsai, Chan-Feng, "Soil-Pile Interaction in Liquefiable Cohesionless Soils During Earthquake Loading" (1981). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 18.
https://scholarsmine.mst.edu/icrageesd/01icrageesd/session04/18
Included in
Soil-Pile Interaction in Liquefiable Cohesionless Soils During Earthquake Loading
St. Louis, Missouri
A procedure for soil-pile-structure interaction analyses under earthquake loading is presented, using two computer programs: DESRA and SPASM. DESRA solves for free-field site response, including liquefaction, using a two-phase pore-pressure and effective stress soil model. Resulting displacement and pore pressure time histories are then transferred to SPASM for soil-pile-structure interaction solutions. The procedure is compared with a conventional approach consisting of a linear dynamic structural model and a separate nonlinear pseudo static pile model. The SPASM method was found to be useful in practical design of platforms to withstand earthquake loading. When significant superstructure-foundation interaction is expected, uncertainty in the interaction phenomena leads to a range of design results if the conventional approach is used. The SPASM method can provide more definite and realistic design parameters.
